They are Hesperantha, the evening flowers. The reason why they are called the evening flower is because they only opens in the evening. It is quite a unique attraction as flowers usually open in the morning.

These hibiscus looked alike flowers are available in varies species. The reddish pink and white Hesperantha can be found in our garden.

These are the seeds of the evening flower. They look like dates, except smaller in size and the surface is tougher.

This is how it looks like when it is still attached to the plant itself. The seeds of the evening flower are relatively easy to get because they are not buried underground and you can just pluck them off the plant.

The evening flowers are also fairly easy to grow. Once you have their seeds spreaded on the soil and watered, they will start their life cycle after that and you can actually notice the shoots in one or two weeks time.